The thread was some 100 plus pages long. Those generally against libertarian were arguing that that the knife juggler should be tied up, and people can't keep nuclear weapons. The anti-government crowd were quite adamant that such individuals cannot be violated against unless directly threatening you. I'm being serious.
My political leanings are more or less negligible, though am admittedly fascinated by the discourse. There isn't a "party" that I can agree with or that represents my views, so I can't claim to be a libertarian, or anarchist, or any of that. I am probably not even old enough to have enough perspective or energy for political matters being still shy of my 50th birthday by a few years. My guiding principle is that more love is better, and am motivated to increase that where I can.
It does seem like you have at lease some reasonable positions, at least about what could constitute "aggression" from your recounting of those proposals, and it looks at least like some NAP advocates that have a loud voice in the discourse would agree with you.
Those proposals don't seem likely to occur though, and I'd be reluctant to tar one person's beliefs onto another, or even on to the same person over time. People have minds that change. I'd venture that there are probably scant few "Libertarians" that would stand by and let that knife juggler endanger themselves if they were faced with such an event....
But I have found that there are many that are far too eager to create laws to solve social problems. It seems to make little sense to take a single event or single bad action by an individual person (especially one who is particularly bad at making high quality decisions), and on that basis advocate increased law (guns) be applied to everyone pre-emptively on the off chance that they may become a knife-juggler.
Bringing this discussion back a bit to guns and assault. Most all of the folks who are particularly bad decision makers in the US at least tend to make these bad decisions while under the influence of some particularly harsh psychoactive substances... Selective serotonin re-uptake inhibitors being the biggest culprit here. If one were to advocate a ban, SSRIs might be a more likely target than the particular weapon at issue, but I wouldn't even go that far myself. There is probably some good purpose for them and they are perhaps simply over-prescribed? It may not be an all out BAN that is needed, and just a bit more judicious use?